2221242552 has 48 divisors (see below), whose sum is σ = 6020196000. Its totient is φ = 739881216.

The previous prime is 2221242533. The next prime is 2221242563. The reversal of 2221242552 is 2552421222.

It is a happy number.

2221242552 is a `hidden beast` number, since 22 + 212 + 425 + 5 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96849 + ... + 117567.

It is an arithmetic number, because the mean of its divisors is an integer number (125420750).

Almost surely, 2^2221242552 is an apocalyptic number.

It is an amenable number.

2221242552 is an abundant number, since it is smaller than the sum of its proper divisors (3798953448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221242552 is a wasteful number, since it uses less digits than its factorization.

2221242552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22220 (or 22213 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 2221242552 is about 47130.0599617696. The cubic root of 2221242552 is about 1304.7640882403.

Adding to 2221242552 its reverse (2552421222), we get a palindrome (4773663774).

It can be divided in two parts, 222124 and 2552, that added together give a square (224676 = 474²).

The spelling of 2221242552 in words is "two billion, two hundred twenty-one million, two hundred forty-two thousand, five hundred fifty-two".